S.D. Codified Laws § 32-7A-3
No person may engage in the business, either exclusively or in addition to any other occupation, of selling or manufacturing mobile homes or manufactured homes, new or used, or shall offer to sell, solicit, or advertise the sale of mobile homes or manufactured homes, new or used, without first having acquired a license to do so. Any violation of this section is a Class 2 misdemeanor. Any subsequent violation that occurs within two years from any violation of this section is a Class 1 misdemeanor. The licensing requirements of this section do not apply to any regulated lenders as that term is defined in § 54-3-14, any insurance company authorized to do business in this state, or any financing institution as defined in and licensed pursuant to chapter 54-4 that acquires mobile homes or manufactured homes as an incident to its regular business.
SDCL 32-7A-3